Well I Hope this does not offend no one but it is what happened and it did make me laugh...
While taking a 2.5 yr old to potty, as I took his diaper off he says "I have a big unit"
that's how I was, but he keep on going "I have a big unit like daddy"
So I asked him "What is your unit?" and he touches his wee wee and says "a big one like daddy" OMG That is something I would be embarrassed of sharing with mom so I won't.